Tube-number record
4RP
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BrandElectronic Tube Corp.
ClassCathode Ray Tube
BaseDuodecal
Filament6.3 V @ 300 mA
Construction
Primary TypeDisplay / CRT
EnvelopeRectangular Glass
Base MaterialPlastic
SectionsSingle
Filament / Heater
Heater Notes0.3 Amperes
Absolute Maximum Ratings
Plate Voltage3000 V
Grid 2 Voltage650 V
Grid 1 Voltage-200 V
H-C Voltage180 V
Audio Performance
Key Features
- Linear Post-Accelerator
- Geometry Adjust electrode
- Rectangular flat face
- Very low deflection factors
Typical Operation
| Mode | Plate V | Gm (µmhos) | Rp (Ω) | µ | Plate mA |
|---|---|---|---|---|---|
| Typical Operation | 3000 V | — | — | — | 0.015 mA |
Application Notes
Designed for compact transistorized equipment. Minimum useful scan 2-1/2 inches horizontal and 2-1/4 inches vertically.
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